Surface Area Video Lesson

What is the surface area of a 3D solid?

• The volume of the solid.

• The sum of the areas of all its faces.

• The perimeter of its base.

• The product of its length, width, and height.

What is a net in the context of 3D geometry?

• A tool used to catch fish.

• A 2D representation of a 3D shape that has been unfolded.

• The total area of the base of a solid.

• A type of fishing equipment.

For the rectangular prism shown in Example 1, what are the dimensions of the top face?

• 3 inches by 4 inches

• 3 inches by 7 inches

• 4 inches by 7 inches

• 7 inches by 7 inches

What is the total surface area of the rectangular prism with dimensions 3 inches, 4 inches, and 7 inches?

• 100 square inches

• 112 square inches

• 122 square inches

• 130 square inches

What is the area of the bottom rectangular face of the triangular prism?

• 40 cm²

• 60 cm²

• 96 cm²

• 104 cm²

What is the area of the top rectangular face of the triangular prism?

• 40 cm²

• 60 cm²

• 96 cm²

• 104 cm²

What is the total surface area of the triangular prism?

• 280 cm²

• 300 cm²

• 320 cm²

• 340 cm²

What is the area of the base of the square pyramid?

• 49 m²

• 70 m²

• 140 m²

• 189 m²